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Exchange 2000 - SMTP Header Change - SMTP Virtual Server Delivery Options

Hi there.

I have Exchange 2000.  Right now my mail goes out with the FQDN header of SERVER.DOMAIN.COM.  I'd like to change this from using the server name to simply using the generic "MAIL", so it would appear MAIL.DOMAIN.COM.

If I go into the properties of my SMTP Virtual Server and go under Delivery and Advanced, it appears I can change the FQDN entry from SERVER.DOMAIN.COM to MAIL.DOMAIN.COM.  Is this the correct place to accomplish this?  Is this the ONLY thing I need to do to accomplish this change?  

Also, what happens if I do this?  Are there concerns with being tagged as spam from changing the FQDN of my Virtaul server?  I need to do this with the absolute minimal interruption of service possible.
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Remy001
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Remy001
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1 Solution
 
Irwin SantosComputer Integration SpecialistCommented:
Go for it... but you have to include REVERSE DNS and a DNS entry in your forward domain to include a CNAME alias for mail.domain.com
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Remy001Author Commented:
How do I accomplish that?  Or do I even?

I do not host my own DNS records, my ISP hosts my DNS records so any changes to the reverse lookups, MX and A records, etc. need to be requested through them.

I guess I should explain further.  My purpose in making the change is that currently my DNS records list my mail server as MAIL.DOMAIN.COM but it's responding as SERVER.DOMAIN.COM when queried by other servers as part of their anti-spam checks.  This results in a very small percentage of my outbound mail getting rejected as spam (apparently most servers simply aren't THAT picky).  I'm trying to nip that very small percentage, hence my attempt to match my Virtual SMTP server FQDN information to that which is listed in my DNS records so that those picky lookups show a match.

Am I barking up the wrong tree?
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Irwin SantosComputer Integration SpecialistCommented:
"I do not host my own DNS records, my ISP hosts my DNS records so any changes to the reverse lookups, MX and A records, etc. need to be requested through them."

then make that request.

"Am I barking up the wrong tree?"

no..but the right tree IS your provider...ask them to make that REVERSE entry AND the Alias, you can even ask for a HOST (A record) for mail.domain.com
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Remy001Author Commented:
Excellent, thanks.  I had suspected what I needed was going to have to come from the ISP, thanks for the confirmation.  Now the challenge is getting them to make the change, they are notoriously poor at honoring such requests.

Just to recap:  Having them change the Reverse entry and alias means I don't have to touch my Virtaul SMTP server settings, correct?
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Irwin SantosComputer Integration SpecialistCommented:
"Having them change the Reverse entry and alias means I don't have to touch my Virtaul SMTP server settings, correct?"
ideally, if your ISP has got the correct DNS configuration, then yes... when the mail is transported out of your box to your ISP, the return address of the orginating box will be that of your server.  A correct reverse DNS entry will resolve the originating mail server IP address and that is what the receipient servers are looking for.
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